Box of Chalk (8 blocks)

Gym Chalk Blocks (Box of 8): Improve Your Grip and Performance Gym chalk blocks are made of magnesium carbonate, a natural mineral that absorbs moisture and creates friction between your skin and the equipment. By using gym chalk blocks, you can lift heavier, protect your hands, reduce the risk of injury, and train in any condition. Gym chalk blocks are easy to use, less messy, and more cost-effective than powder chalk.